One marker of ice loss on Kilimanjaro was the radioactive signature of fall-out from atomic tests carried out in the early 1950s.
乞力马扎罗山峰冰雪消融的标志是在20世纪50年代早期开展的原子能测试产生辐射尘的放射性特征。
2
If it rains or snows, the radioactive elements it can fall to earth more quickly.
如果下雨或下雪，放射性元素就能以更快速度降落至地面。
3
Most of the radioactive particles are expected to fall out over the western Pacific Ocean. Quantities will be so diffuse at that point that they're not likely to make fish there unsafe to eat.